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BYD P2B7E00

Large deviation of current sampling at shunt

DriveUnknown. Whether the vehicle can be driven is not established by verified evidence.
ChargeUnknown. Whether the vehicle can be charged is not established by verified evidence.
ServiceService requirement is unknown in the supplied evidence. Because this code concerns the HV battery system, professional assessment is appropriate.
Confidence95%

Quick answer

BYD DTC P2B7E00 means “Large deviation of current sampling at shunt.” Verified applicability is BYD ATTO 3 model years 2022–2026, Global market.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

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1. What does P2B7E00 mean?

BYD DTC P2B7E00 means “Large deviation of current sampling at shunt.” Verified applicability is BYD ATTO 3 model years 2022–2026, Global market.

2. Technical explanation

The verified diagnostic evidence identifies P2B7E00 as an HV battery-system DTC for a large deviation in current sampling at the shunt. The supplied evidence does not establish the underlying fault mechanism, triggering conditions, diagnostic thresholds, or repair procedure.

3. What system is affected?

HV battery

4. How serious is this code?

Unknown. Severity is not established by the verified evidence.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • Not yet established by verified evidence.

7. Can I still drive the vehicle?

Unknown. Whether the vehicle can be driven is not established by verified evidence.

8. Can I charge the vehicle?

Unknown. Whether the vehicle can be charged is not established by verified evidence.

9. What you can safely do

  • Arrange professional diagnosis by a qualified BYD service provider.
  • Do not attempt high-voltage battery or shunt-related repairs yourself.

10. Step-by-step troubleshooting

  1. A qualified service provider should retrieve and assess P2B7E00 using appropriate diagnostic equipment.
  2. Further diagnostic steps are not yet established by the verified evidence.

11. When to contact service

Service requirement is unknown in the supplied evidence. Because this code concerns the HV battery system, professional assessment is appropriate.

12. What the service center may check

  • Confirm the stored DTC and assess associated diagnostic information.
  • Additional service checks are not yet established by verified evidence.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • No technical service bulletins were supplied in the verified evidence.

16. Recall information

  • No recalls were supplied in the verified evidence.

17. Official manufacturer information

Verified source: OBDTotal technical manual index, “BYD ATTO 3 diagnostic evidence,” locator: ATTO 3 / Yuan Plus (SC2E) / P2B7E00. The supplied evidence has confidence 0.9500 and was last verified on 2026-09-25.

19. Frequently asked questions

What does BYD code P2B7E00 mean?

It means “Large deviation of current sampling at shunt.”

Which vehicles are verified as applicable?

BYD ATTO 3, model years 2022 through 2026, Global market.

Can I drive with P2B7E00?

Not yet established by verified evidence.

Can I charge with P2B7E00?

Not yet established by verified evidence.

20. Sources & verification

Verified
BYD P2B7E00: Large deviation of current sampling at shunt | EV Diagnostics